Mortar-based method to predict compressive strength development of GGBFS concrete using fib model code’s strength and maturity functions

Abstract

fib Model Code for Concrete Structures 2010 provides the strength and maturity functions to predict compressive strength development of concrete. The default values of the coefficient s in the function are given only considering different cement classes. However, s value is influenced by the water/binder ratio, curing time, SCM type, content and its physicochemical properties. To predict compressive strength of GGBFS concrete under different curing temperatures, this paper standardizes mortar-based method to obtain the s value and best-fit apparent activation energy. Via examples, it demonstrates that feasibility of the proposed mortar-based method to estimate strength development of concrete.